faint metal griding noise help...
05-02-2005, 03:46 PM
#1
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faint metal griding noise help...
The metal grinding noise is constant is very faint. I only noticed it when I started to drive with the windows down. The noise seem to go away when I apply the brakes. The dealer has changed to pads and did something with sandpaper to try getting rid of the noise but no luck. Any ideas?
05-02-2005, 04:06 PM
#2
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Sandpaper? You're kidding, right? How about re-surfacing the rotors? That is standard procedure
if new Pads are applied. Any Color changes or markings on the Rotor visible (Purple or so)?
And what kind of pads are used? Stock or AM?
It could also be that one of the Pistons is faulty and keeps a permanent pressure point on the pad.
Lots of possibilities.....
And what kind of pads are used? Stock or AM?
It could also be that one of the Pistons is faulty and keeps a permanent pressure point on the pad.
Lots of possibilities.....
05-02-2005, 04:26 PM
#5
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Here is a copy of the W/O
<center><img src="http://pictureposter.audiworld.com/85816/wo1.jpg"></center><p>They also did the same on the rear brakes
05-02-2005, 04:39 PM
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ouch....I am speechless and disturbed.....never saw something like this before...
now I need a drink and think about the meaning of life while driving an Audi....holy cow!!!!
Any signs of unusual wear (see first reply to your post)?
Any signs of unusual wear (see first reply to your post)?
05-02-2005, 07:25 PM
#7
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Just wait until you get rotor scoring caused by the sand left in the pads
Let's hope the sandpaper was for the repair technician for scatching his backside while trying to figure out how to do the job correctly.
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05-02-2005, 07:45 PM
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Some reading material..by Stoptech.
they actually mention in a sentence further down :do not use regular Sand paper or sand blast the rotors.
It may help in your troubleshooting to go after the cause, not the symptom.<ul><li><a href="http://www.stoptech.com/whitepapers/warped_rotors_myth.htm">http://www.stoptech.com/whitepapers/warped_rotors_myth.htm</a</li></ul>
It may help in your troubleshooting to go after the cause, not the symptom.<ul><li><a href="http://www.stoptech.com/whitepapers/warped_rotors_myth.htm">http://www.stoptech.com/whitepapers/warped_rotors_myth.htm</a</li></ul>
05-03-2005, 03:27 AM
#10
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Xtreetoes...I think you may be right on the leading edges...
of the pads being sanded down. I did a visual and all four pads seems to have been rounded off at the edges. I don't recall the pads being this way before.